Polycyclic Aromatic Hydrocarbons (PAHs) in Wheat Straw Pyrolysis Products Produced for Energy Purposes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27730%2F24%3A10255735" target="_blank" >RIV/61989100:27730/24:10255735 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2071-1050/16/22/9639" target="_blank" >https://www.mdpi.com/2071-1050/16/22/9639</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/su16229639" target="_blank" >10.3390/su16229639</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polycyclic Aromatic Hydrocarbons (PAHs) in Wheat Straw Pyrolysis Products Produced for Energy Purposes

Popis výsledku v původním jazyce

To obtain liquid and gaseous forms of biomass fuel, wheat straw pellets were pyrolysed in a screw reactor at temperatures of 300, 400, 500, 600, and 700 oC. The analysis of the effect of process temperature on changes in the physicochemical composition of the raw material used and the biochar, pyrolysis liquid, and synthesis gas obtained from it was carried out. It was checked whether biochar does not contain substances harmful to health by determining polycyclic aromatic hydrocarbons (PAHs) in it. Similar tests were carried out for pyrolysis fluid. The analysis used standards for the most dangerous PAHs: fluorene, anthracene, fluoranthene, benzo[b]fluorine, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, diben[a,h]anthracene, benzo[g,h,i]perylene, indeno[1,2,3-cd]pyrene. The results showed that the total content of polycyclic aromatic hydrocarbons in the biochar ranged from 346.81 µg.kg-1 at 300 oC to 1,660.87 µg.kg-1 (700 oC). In the pyrolytic fluid, PAH content ranged from 58,240.7 µg.kg-1 (300 oC) to 101,889.0 µg.kg-1 (600 oC). It was found that the increase in PAH content in both the biochar and the liquid progressed with increasing pyrolysis temperature. After finding a correlation between the increase in PAH content in biochar and the increase in the content of high-energy gases in the synthesis gas, it was concluded that it is difficult to reconcile the production of PAH-free biochar in the pyrolysis of biomass to obtaining high-energy gas and pyrolysis oil.

Název v anglickém jazyce

Polycyclic Aromatic Hydrocarbons (PAHs) in Wheat Straw Pyrolysis Products Produced for Energy Purposes

Popis výsledku anglicky

To obtain liquid and gaseous forms of biomass fuel, wheat straw pellets were pyrolysed in a screw reactor at temperatures of 300, 400, 500, 600, and 700 oC. The analysis of the effect of process temperature on changes in the physicochemical composition of the raw material used and the biochar, pyrolysis liquid, and synthesis gas obtained from it was carried out. It was checked whether biochar does not contain substances harmful to health by determining polycyclic aromatic hydrocarbons (PAHs) in it. Similar tests were carried out for pyrolysis fluid. The analysis used standards for the most dangerous PAHs: fluorene, anthracene, fluoranthene, benzo[b]fluorine, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, diben[a,h]anthracene, benzo[g,h,i]perylene, indeno[1,2,3-cd]pyrene. The results showed that the total content of polycyclic aromatic hydrocarbons in the biochar ranged from 346.81 µg.kg-1 at 300 oC to 1,660.87 µg.kg-1 (700 oC). In the pyrolytic fluid, PAH content ranged from 58,240.7 µg.kg-1 (300 oC) to 101,889.0 µg.kg-1 (600 oC). It was found that the increase in PAH content in both the biochar and the liquid progressed with increasing pyrolysis temperature. After finding a correlation between the increase in PAH content in biochar and the increase in the content of high-energy gases in the synthesis gas, it was concluded that it is difficult to reconcile the production of PAH-free biochar in the pyrolysis of biomass to obtaining high-energy gas and pyrolysis oil.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20600 - Medical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sustainability

ISSN

2071-1050

e-ISSN

2071-1050

Svazek periodika

16

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

001366034600001

EID výsledku v databázi Scopus

2-s2.0-85210234699